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Subject[PATCH 21/23] staging: mt29f_spinand: switch to mtd_ooblayout_ops
Date
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/staging/mt29f_spinand/mt29f_spinand.c | 44 ++++++++++++++++-----------
1 file changed, 26 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index cb9d5ab..967d50a 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -42,23 +42,29 @@ static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
static int enable_hw_ecc;
static int enable_read_hw_ecc;

-static struct nand_ecclayout spinand_oob_64 = {
- .eccbytes = 24,
- .eccpos = {
- 1, 2, 3, 4, 5, 6,
- 17, 18, 19, 20, 21, 22,
- 33, 34, 35, 36, 37, 38,
- 49, 50, 51, 52, 53, 54, },
- .oobfree = {
- {.offset = 8,
- .length = 8},
- {.offset = 24,
- .length = 8},
- {.offset = 40,
- .length = 8},
- {.offset = 56,
- .length = 8},
- }
+static int spinand_oob_64_eccpos(struct mtd_info *mtd, int eccbyte)
+{
+ if (eccbyte > 23)
+ return -ERANGE;
+
+ return ((eccbyte / 6) * 16) + 1;
+}
+
+static int spinand_oob_64_oobfree(struct mtd_info *mtd, int section,
+ struct nand_oobfree *oobfree)
+{
+ if (section > 3)
+ return -ERANGE;
+
+ oobfree->offset = (section * 16) + 8;
+ oobfree->length = 8;
+
+ return 0;
+}
+
+const struct mtd_ooblayout_ops spinand_oob_64_ops = {
+ .eccpos = spinand_oob_64_eccpos,
+ .oobfree = spinand_oob_64_oobfree,
};
#endif

@@ -883,7 +889,6 @@ static int spinand_probe(struct spi_device *spi_nand)

chip->ecc.strength = 1;
chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
- chip->ecc.layout = &spinand_oob_64;
chip->ecc.read_page = spinand_read_page_hwecc;
chip->ecc.write_page = spinand_write_page_hwecc;
#else
@@ -911,6 +916,9 @@ static int spinand_probe(struct spi_device *spi_nand)
mtd->priv = chip;
mtd->dev.parent = &spi_nand->dev;
mtd->oobsize = 64;
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+ mtd_set_ooblayout(mtd, &spinand_oob_64_ops);
+#endif

if (nand_scan(mtd, 1))
return -ENXIO;
--
2.1.4


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